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' O. K. MARR. APPARATUS FOR AUTOMATICALLY DISPLAYING ADVERTISEMENTS. No. 542,802.

Patented July 16, 1895.

- UNITED- STATES PATENT OFFICE.

'CHARLES KERR MARR, OF LONDON, AS SIGNOR TO JONATHAN REDMAN, OF

SALEM MILLS, HEBDEN BRIDGE, ENGLAND.

APPARATUS FOR AUTOMATICALLY DISPLAYING ADVERTISEMENTS.

SPECIFICATION forming part of Letters Patent No. 542,802, dated July 16, 1895. Application filed September 18, 1894- Serial No. 523,384;- (No model.) Patented in England September 1, 1893, No. 16,450.

To all whom it may concern.-

Be it known that 1, CHARLES KERR MARE, gentleman, a citizen of the United Kingdom of Great Britain and Ireland, residing at 3 Milk Street Buildings, in the city of London, England, have invented new and useful Improvements in Apparatus for Automatically Displaying Advertisements, Pictures, and the Like, (which have not been patented in any country except Great Britain and Ireland, by Letters Patent dated the 1st day of September, 1893, No.16,450;) and I do hereby (1e and the present invention has for its object improvements in the electrical mechanism described in the specification filed underthe Letters Patent granted to George Cook and myself, No. 507,785, A. D. 1893, for rotating the cylinders or drums in conjunction with the clock.

As illustrated by the accompanying drawings, Figure 1 is a front elevation of the improved advertising apparatus; Fig. 2, a rear elevation with the back of the casing removed; Figs. 3 and 4, front and side elevations of details of the electrical mechanism, and Fig. 5 theolockwork mechanism and electrical connections.

The improved apparatus consists, as particularly shown by Figs. 3 and 4, of a solenoid A, the two soft iron cores B of which arev connected to a frame 0 constituting a magnetarmature, and which frame is capable of movement in a vertical direction.

The frame 0 has a pawlD loosely centered on its lower part, and'the said pawl has aheel E on it which, in the operation of the apparatus, acts on a number of pins a, spaced at equal distances apart around one face of i the periphery of a disk F secured on the the other face with which a tooth made on a loosely-centered lever H engages, so as to prevent the disk F from turning backward. One such solenoid A is provided for each advertising drum or cylinder G in the machine, the number of pins in the disk F corresponding to the number of advertisements, row of pictures, or the like, it is desired to display.

The coils constituting the solenoids A are connected to a battery and in the circuit a clock I is placed, in conjunction with which a contact making and breaking cam or lever J is provided, the said lever having preferably three arms, to each of which one end of a spring J is attached, the other end being provided with a pin J projecting through the arm and which, through the action of the clock on whose dial or other spindle the lever is fixed, is caused to periodically make contact with a series of pinsK in thecircuit, the

effect of which is at each contact to raise the frame 0 carrying the pawl D from the lastoperated-on'pin in the drum-turning di'sk F.

Immediately the pin of thespring J- in any arm of the lever or cam J is by the clock moved out of contact with any pin K connected to a solenoid, the circuit is broken and the frame carrying the pawl D drops by its own weight and the drum or cylinder G is turned through an are so as to display another advertisement, picture, or the like.

The cam L, which causes the spring M to transmit the electric current from the battery-wire X to the lever J is the same as that described in the aforementioned specification.

Having now described the invention, what I desire to secure by Letters Patent is In an automatically acting advertising machine, the combination with the spindle of the advertising cylinder or drum and contact making and breaking appliances operated by cured on the spindle of said drum and pro In witness whereof I have hereunto set my vided with a series of pins adapted to be acted hand and seal this 25th day of August, 1894. upon by said pawl when the electric current V is transmitted through said solenoid by the CHARLES KERR MARE action of the clockwork on the contact inak- Witnesses:

ing and breaking appliances,substantially as GEO. J. B. FRANKLIN,

set forth. JOSEPH LAKE. 

